8a what event is occuring? 8b circle chemical change or physical change
8a what event is occuring? 8b circle chemical change or physical change
Answer
Explanation:
Step1: Analyze the reaction
Magnesium ribbon burns in air with a bright light. This is a chemical reaction where magnesium (Mg) reacts with oxygen (O₂) in the air to form magnesium oxide (MgO). The chemical equation for this reaction is (2Mg + O_{2}\xrightarrow{\text{heat}}2MgO).
Step2: Classify the change
A chemical change results in the formation of new substances with different chemical properties. Since magnesium is changing into magnesium oxide during the burning process, it is a chemical change.
Answer:
8a. Magnesium ribbon is burning in air, reacting with oxygen to form magnesium oxide. 8b. Chemical Change